Street-sweeping machine.



4No. 778,076.y

PATBNTED DEG. 2o, 1904.

0. smIUMANN.

STREET SWEBPING MACHINE.

.APELIGATION FILED MAR. 22. 1904.

2 SHEETS--SHBBT l.

N0 MODEL,

170.778,076. y MTBNTED DEO. 2o, 1904.

o. SGHUMANN.

STREET SWEBPING MACHINE.

APPLIUATION FILED MAR. 2z, 1904. No MODEL. z SHEETS-EMM 2.

UNITED STATES Patented December 2O` 1904.

PATENT OFFICE.

STEET-SWEEPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 778,076, dated December20, 1904:.v Appiication fied'mmh 22, 1904. serai No. 199,345.

vmachine; and it consists of novel means for elevating the dirt, Sac.,and directing the same to a chute leading to a place of collection ofsaid dirt, te., a gatewhich may be placed in truck of the machine, tothe sides of which are the path of the bucket, so as to receive thecontents thereof, and then to be removed from said path to permit theunobstructed passage of said bucket, and other details of construction,as will be hereinafter set forth, the novel features being pointed outin the claims.

Figure'l represents a top or plan view of a street-sweeping machineembodying my invention, certain parts of the frame of themachine havingbeen removed. Fig. 2 repre- Sents a partial side elevation and partialvertical section thereof. Fig. 3 represents a side elevation of adetached portion, showing a certain member thereof in a differentposition from that shown in Fig. 2.

Similar letters of reference indicate corresponding parts in thefigures.

Referring to the drawings, A designates the secured brackets B,onthelower ends of which latter-is mounted the rotary brush C, which isadapted to direct dirt,'&c., from the street into the primary receptacleD, whichdepends from the truck A and is firmly secured thereto and is inIcommunication with the vertical casing E, which latter is supported onsaid truck and the cross-bar F.X thereon. On the shaft' F of said brushis the sprocket-wheel G, around which passes the sprocket-chain H, thelatter passing around the sprocketwheel J on the counter-shaft K, whichis mounted in hangers L on the truck A, 'said shaft K having alsoconnected with it the spur -wheel M, which gears with the spurwheel N,the latter 'being firmly secured to the axle P of the machine, said axlein the present case being those of the hind wheels, it being evidentthat when the machine is in motion rotation is imparted to the wheel Nand from thence to the Wheel M, the sprocketwheel J, the chain H, andthe sprocket-wheel Gr, whereby the brush C is rotated thus sweeping thedirt, &c., of the street into the receptacle D, as has been stated. Theshaft K has sliding motions in the hangers L as its'bearings, so that itmay be moved to the right and left, and thereby place the wheels M andNin and out of gear, by which provision the power of theV aXle P is notcommunicated to the brush and elevator, and thus the latter remainsinoperative. When, however, said shaft K is moved to the right, thewheels M and N are placed into gear, and rotation of the brush andelevator is thereby effected. In order to impart said sliding motions tothe shaft K, I employ the elbow-or elbow-arm Q, which has one limbfreely engaging with said shaft K between collars Q' Q' thereon, and theother limb, R passing freely through'the adjacent hanger L and isconnected with the lever S, the latter being mounted on the truckAandconnected with the rod T, the latter being attached to the lever U,which is mounted adjacent to thedrivers seat, so that the driver canconveniently cause the operation of said shaft K in order to throw thebrush Ointo and out of engagement with and from the aXle P through the-intermediate mechanism, as is evident.

On the shaft K is the sprocket-wheel V,

around whichv passes the sprocket-chain W,

the latter also passing around the sprocketwheel X, which is mounted onthe standards Y, which are supported within the receptacle D and casingE and furthermore held by the brace Y', which is connected with theframe of the machine. The shaft Z of said sprocketwheel X also carriesthe sprocket-wheel A', around which passes the endless sprocketchain B',the latter also lpassing e around the sprocket-wheel C', mounted on thebottom of said standards 4sprocket-chain B are the elevator-buckets D',which in their motions are adapted to enter the receptacle D and thenrise therefrom to Y. Connected with said the top of the casing E, whenthey overturn and are adapted to discharge their contents into a chuteE', which is connected with the upper portion of the casing E and therear portion of the truck A and is in communication with the easing E bythe opening F' on the rear side of the latter. In said opening F' is agate G', which is adapted to be engaged by the elbow-lever H', which ismounted on the side of the casing E and adapted to have one limb, H3,engaged at intervals by the arm J', which is connected with and projectsradially from the shaft Z, its other limb, H4, being adapted to engagewith the under side of the gate G', so as to elevate the same, as shownin Fig. 2, it being noticed in Fig. 3 that the gate is adapted to lower,whereby the contents of the overturned elevator-buckets drop on saidgate and are directed into the chute J', after which the gate is raisedso as to permit the downward passage of said bucket without said gateaffording an obstacle thereto. The rear of the chute E' opens into thechamber H2 on the frame of the truck or machine,said chamber containinga box J', which is adapted to receive dirt, &e., as it leaves the chuteE', it being made removable from said chamber H2, so that the dirt, &c.,deposited therein may be taken elsewhere.

The operation is as follows: The machine is advanced, and as the shaft Kis rotated by the gearing employed motion is communicated to the wheelV, the chain IV, and the wheel X, whereby as the buckets D' dip into thedirt, &c., deposited in the receptacle D by the brush C they conveytheir contents to the top of the casing E, when they overturn and dumpsaid contents upon the gate G', the latter being in the position shownin Fig. 3. Then as the arm J' engages the adjacent limb of the lever H'and depresses the same the other limb bears upwardly against the underside of the gate G' and lifts the latter to the position shown in Fig.2, thus placing the same out of the path of the descending bucket. Thenthe arm J' clears the lever H', when the gate drops and is againprojected below the neXt advancing bucket, as in Fig. 3, when saidbucket is overturned and discharges its load upon said gate, thusdirecting the dirt, &c., into the chute E', as before, after which thelever H' is again engaged by the arm J', so as to elevatethe gate, as inFig. 2, and permit the descent of the last overturned bucket past thegate, as previously.

The machine is provided with the watertank K' and sprinkling-pipes L',the former having therein the valve M', whose stem N' may beconveniently operated from the drivers seat.

The brush C extends obliquely across the truck of the machine and hasone end eXtended beyond the rim of the adjacent wheel, so as to enter agutter of a street or roadway,

and thus sweep the same, the dirt, &e., from said gutter then beingdirected into the receptacle D, which is also obliquely arranged so asto include the projected end of the brush in its compass, the sweepingof the gutter thus being sidcwise, and hence made effective.

rlhe hangers B are adapted to be lengtlr ened and shortened to adapt thcbrush to be vertically adjusted.

Various changes may be made in the details of construction withoutdeparting from the general spirit of my invention, and l do not,therefore, desire to be limited in each case to the same.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a street-sweeping machine, a traveling bucket, a primaryreceptacle for the dirt, in which said bucket is movable, a rotary brushadjacent to the inlet of said receptacle, a gate and means for movingsaid gate into and from the path of said bucket.

2. In astreet-sweepingmachine, a primary receptacle for dirt, &c., abucket movable in said receptacle, a chute adjacent to said bucket and agate in said chute adapted to be placed in the path of said bucket toreceive the contents thereof, and to be removed therefrom to permit thebucket to pass said gate.

3. In a street-sweeping machine, a bucket, an endless conveyer therefor,a wheel for operating said conveyer, a bodil y-slid able rotary shaft inthe frame of the machine with which said wheel is geared, a rotary brushwith which said shaft is geared, and means cmbodying an elbow-leverfreely engaging said shaft and a pivoted elbow-lever and a slidable armconnected therewith, said lever freely engaging said shaft for impartingsliding' motions to said shaft in its bearings.

4. In a street-sweeping machine, a bucket, an endless conveyer therefor,a wheel for operating said conveyer, a rotary shaft mounted for bodilyendwise movcmenton the frame of the machine with which said wheel isgeared, a rotary brush with which said shaft is geared, and means forimparting slidingl motions to said shaft in its bearings, said meansconsisting of a sliding arm which is freely connected with said shaft,an elbowlever which is attached to said arm and a device under controlof the driver for operating said lever in opposite directions.

5. In astreet-sweeping machine, a conveyer, a bucket therein, a casingin which said conveyer and bucket are movable, a chute leading from saidcasing to a chamber on the machine, and a gate in said chute the samebeing adapted to be placed in the path of said bucket to receive thedirt, &c., and direct the latter to said chute, said gate being alsoadapted to be moved from said path to permit the bucket to pass saidgate.

IOO

6. In a'street-sweeping machine, a receptapath of the same, a leveradapted to engage cle for dirt, Sac., a sweeping device adjacent withsaid gate' and means adapted to engage to said receptacle, a travelingbucket adapted with said lever to cause said gate to be raised. t0 enterlsaid receptacle, means on the machine 1 OTTO SUHUMANN. 5 for operatingthe traveler that carries Said Witnesses:

bucket; agate mounted adjacent t said bucket JOHN A. *WIEDERSHEIM 'andadapted to be placed into and out of the S. R. CARR.

